Attachment for lace machines



June 24, 1924. 1,499,212

J. GIROD ATTACHMENT FOR LACE MACHINES Filed June 21. 19:1

W76 (Arm/4R0 I v m I I \N N I Joke 2% 69/ 00 BY mgmb INVENTCR Patented June 24, 1924.

tr r a s JOSEPH GIRO'D, F IPATERSON, NEW JERSEY.

ATTACHMENT F033, LACE MACHINES.

Application filed June 21, 1921.

To all whom it may concern:

Be it known that I, Josnrrr Ginoi), a citizen of France, residing at Paterson, in the county of Passaic and State of New Jersey, have invented new and useful Improvements in Attachments for Lace Machines, of which the following is a specification.

This invention relates to an attachment for lace making machines, adapted for weaving so-called spot veils, and the object is to provide for the necessary tension in making the net and the relatively slight tension required for producing the spot.

A further object is to obviate the necessity of controlling the tension of the net on one side of the beam, and the tension of the spot on the other side, the usual construction involving this procedure being inconvenient, and consuming time, owing to the distance to be covered by the operator in passing from one point to another.

A further object is to provide a plurality of elements each acting under the influence of a resilient device for producing the required tension, with means whereby the operation of the acquard mechanism will render one of the resiliently held devices ineffective, so that the other will alone produce tension on the thread, the lessened tension being suitable for the production of the spot.

With the foregoing and other objects in View, the invention consists in the novel construction, combination, and arrangementof elements hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a perspective view of the device, and Figure 2 is a similar view of a modified form.

Referring to the drawings in detail, the beam is shown at and the beam rack is designated 12, the cord 14: having connection with hook 14 on a bar 15, and the latter having connection by means of a hook 16 with spring 17, suitably secured, at the opposite end. Cord 14 is adapted for connection with any suitable mechanism acting to vary the tension on a bobbin thread, and may for in stance pass around a wheel on beam 10, the extent of frictional resistance ofl'ered to the rotation of the wheel and the rotation of a bobbin to be carried by the beam, depending upon whether springs 17 and 22 are effective at a given time, or Whether spring 17 is acting alone.

Connected with bar are lateral arms or brackets 18 and 19 provided. with apertures Serial No. 479,284.

through which bar 20 loosely passes. This bar 20 is provided with a stop collar 21 engaging bracket 18, under normal conditions, owing to the tension of spring 22 connected with hook 23 at one end of the bar.

The opposite end of bar 20 carries a hook 24: for engagement with suitable means for effecting connection with cord 25 leading to the jacquard mechanism, not shown.

In the operation of the mechanism in producing the spot, a pull is exerted on hook 24, causing the stop collar 21 to move out of engagement with bracket 18, with the result that spring 22 connected with bar 20 is no longer effective in exerting tension on the cord 14, the remaining spring alone being active. The comparatively slight tension thus produced is sufficient for making the spot, and the full tension is restored when the jacquard mechanism causes the stop collar 21 to again come into engagement with bracket 18 on bar 15. The device may be applied to any number of beams.

In the drawings, I have shown a principal and a secondary connecting element between hook 24. and a cord 25 passing over a pulley 26 and leading to the jacquard mechanism. These elements are termed nippers, and the principal device includes links 28, 29. The secondary device includes a cord 30 and links such as 31, each provided with a hook such as 33 at the end thereof. Four of the second ary devices may be connected with one principal, when required.

In the form of the device illustrated in Figure 2, bar 15 formed of wire includes loops 18 and 19', through which bar 20' passes, the bar last named including a loop 21' acting as a stop when engaging loop 18.

hat I claim is 1. In an attachment of the class described, a bar including laterally extending elements, thread securing means carried by the bar a second. bar movable longitudinally of the bar first named, through the aforesaid lateral elements, and adapted for connection with a jacquard mechanism, a stop carried by the second bar, and tension springs for connectionwith corresponding ends of the bars.

2. In an attachment of the class described, a bar including laterally extending elements provided with apertured portions, a second bar pp im t r parall l h e b r first mentioned and passing through the apertnred portions, means for connecting the second bar With a jacquard mechanism, means for placing these bars individually under tension, a thread holding device connected With the free end of the first named bar, and means for rendering a portion of the tension means ineffective due to the action of the acquard mechanism.

3. In an attachment of the class described, a tension device including a plurality of re silient elements, bars connected respectively with said elements and movable together in one direction under the action of said tension elements, one of the bars being movable independently of the other in the opposite direction, and devices for connecting the bars respectively with a jacquard mechanism and an element to be placed under tension to an extent determined by the operation of the jacquard mechanism.

4. In an attachmentof the class described, a bar and means for connecting the latter With a jacquard mechanism, a spring for placing said bar under tension, a secondbar approximately parallel with the bar first named, a spring for placing the second bar under tension, means for connecting the sec ond bar With a thread holding device and devices permitting said. bars move together in one direction under tension of the springs and permitting one bar to move independently of the other in the opposite direction, for lessening the tension of the thread. 7

In testimony whereof I afiix my signature.

JOSEPH GIRGD. 

